【摘要】：變電站電力系統(tǒng)的穩(wěn)定保障需要依靠直流電源系統(tǒng),因性能具有牢靠、壽命持久、高效率等優(yōu)點,目前軟開關(guān)技術(shù)的高頻開關(guān)電源已經(jīng)成為了現(xiàn)代電力操作電源系統(tǒng)中的一個關(guān)鍵組成部分。由于網(wǎng)絡技術(shù)和計算機檢測技術(shù)在融合變電站直流電源系統(tǒng)的過程中,有效地實現(xiàn)了實時遠程監(jiān)控直流電源系統(tǒng),從而為變電站一次設(shè)備提供了安全、可靠的保障。 論文主要對基于IEC61850的智能變電站中一體化電力操作電源系統(tǒng)進行理論與實踐上的研究,主要對變電站直流電源的工作原理、直流系統(tǒng)主要設(shè)計規(guī)則進行了剖析,并詳細研究了其關(guān)鍵組件與相關(guān)前沿技術(shù)。 論文還重點研究了直流電源系統(tǒng)中的關(guān)鍵組成單元一充放電模塊,并針對傳統(tǒng)充放電單元的諸多弊端,采用新型全橋移相軟開關(guān)技術(shù)的高頻電子開關(guān)電源避開紋波、諧波等問題,并增強了電能轉(zhuǎn)換效率。分布式電源作為電力電子技術(shù)的研究熱點,主要取決于它良好的擴展性和動態(tài)性能。本文還對系統(tǒng)中的均流技術(shù)作了研究,對于常用的幾種均流技術(shù)特點進行了對比分析。
[Abstract]:The stability of substation power system depends on DC power supply system, because of its strong performance, long service life, high efficiency and so on. At present, high frequency switching power supply based on soft switching technology has become a key part of modern power supply system. In the process of integrating DC power supply system of substation with network technology and computer detection technology, the real-time remote monitoring DC power supply system is effectively realized, which provides a safe and reliable guarantee for substation primary equipment. This paper mainly studies the theory and practice of integrated power supply system in intelligent substation based on IEC61850, mainly analyzes the working principle of DC power supply in substation and the main design rules of DC system. The key components and related frontier technologies are studied in detail. The paper also focuses on the research of charge / discharge module, which is the key component of DC power supply system, and aiming at many disadvantages of traditional charging and discharging unit, the high frequency electronic switch power supply based on new full bridge phase shift soft switch technology is adopted to avoid ripple. Harmonics and other problems, and enhance the efficiency of power conversion. As a research hotspot of power electronics, distributed power generation mainly depends on its good expansibility and dynamic performance. In this paper, the current sharing technology in the system is also studied, and the characteristics of several common current sharing technologies are compared and analyzed.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM63

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本文編號：2236346